<template>
  <div class="lang-select">
    <LanguageSelect title="语言"></LanguageSelect>
  </div>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">{{ t("user.login") }}</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          size="large"
          auto-complete="off"
          :placeholder="t('user.loginAccountPlaceholder')"
        >
          <template #prefix
            ><svg-icon icon-class="user" class="el-input__icon input-icon"
          /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          size="large"
          auto-complete="off"
          :placeholder="t('user.passwordPlaceholder')"
          @keyup.enter="handleLogin"
        >
          <template #prefix
            ><svg-icon icon-class="password" class="el-input__icon input-icon"
          /></template>
        </el-input>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin: 0px 0px 25px 0px">{{
        t("user.rememberPassword")
      }}</el-checkbox>
      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="large"
          type="primary"
          style="width: 100%"
          @click.prevent="handleLogin"
        >
          <span v-if="!loading">{{ t("user.login") }}</span>
          <span v-else>{{ t("user.loggingIn") }}</span>
        </el-button>
        <div style="float: right" v-if="updatePwd">
          <router-link class="link-type" :to="'/updatePwd'">{{
            t("user.editPwd")
          }}</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>{{ t("common.title") }}</span>
    </div>
  </div>
</template>

<script setup>
import { useI18n } from "vue-i18n";
const { t } = useI18n();
import LanguageSelect from "@/components/AshCommon/LanguageSelect.vue";
import { login } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import useUserStore from "@/store/modules/user";
import { ElMessage } from "element-plus";

const userStore = useUserStore();
const route = useRoute();
const router = useRouter();
const { proxy } = getCurrentInstance();

const loginForm = ref({
  username: "admin",
  password: "1",
  rememberMe: false,
});
const syId = ref("1019");

const loginRules = {
  username: [
    {
      required: true,
      trigger: "blur",
      message: t("user.loginAccountPlaceholder"),
    },
  ],
  password: [
    {
      required: true,
      trigger: "blur",
      message: t("user.passwordRuleErrorTip"),
    },
  ],
};
const loading = ref(false);
const updatePwd = ref(true);
const redirect = ref(undefined);

watch(
  route,
  (newRoute) => {
    redirect.value = newRoute.query && newRoute.query.redirect;
  },
  { immediate: true }
);

function handleLogin() {
  proxy.$refs.loginRef.validate((valid) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码--30天过期
      if (loginForm.value.rememberMe) {
        Cookies.set("username", loginForm.value.username, { expires: 30 });
        Cookies.set("password", encrypt(loginForm.value.password), {
          expires: 30,
        });
        Cookies.set("rememberMe", loginForm.value.rememberMe, { expires: 30 });
      } else {
        // 否则移除
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      // 调用action的登录方法

      const params = {
        loginAccount: loginForm.value.username,
        userPassword: loginForm.value.password,
        systemId: import.meta.env.VITE_APP_SYS_ID,
      };
      userStore
        .login(params)
        .then(() => {
          const query = route.query;
          const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
            if (cur !== "redirect") {
              acc[cur] = query[cur];
            }
            return acc;
          }, {});

          ElMessage({ message: t("user.loginSuccess"), type: "success" });
          loading.value = false;
          router.push({ path: redirect.value || "/", query: otherQueryParams });
        })
        .catch((err) => {
          loading.value = false;
        });
    }
  });
}

function getCookie() {
  const username = Cookies.get("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password: password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
  };
}

getCookie();
</script>

<style lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 40px;
    input {
      height: 40px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
</style>
